<template>
<el-card class="box-card">
    <div slot="header" class="clearfix">
        <span>重置密码</span>
    </div>
    <!-- 表单 -->
    <el-form :model="pwdForm" :rules="pwdFormRules" ref="pwdFormRef" label-width="100px">
        <el-form-item label="原密码" prop="old_pwd">
            <el-input v-model="pwdForm.old_pwd" type="password"></el-input>
        </el-form-item>
        <el-form-item label="新密码" prop="new_pwd">
            <el-input v-model="pwdForm.new_pwd" type="password"></el-input>
        </el-form-item>
        <el-form-item label="确认新密码" prop="re_pwd">
            <el-input v-model="pwdForm.re_pwd" type="password"></el-input>
        </el-form-item>
        <el-form-item>
            <el-button type="primary" @click="updatePwdFn">修改密码</el-button>
            <el-button @click="resetFn">重置</el-button>
        </el-form-item>
    </el-form>
</el-card>
</template>

<script>
import { updateUserPwdAPI } from '@/api'
export default {
  name: 'UserPwd',
  data () {
    // 由于没有原密码的接口,所以不做原密码校验(或者后端校验)
    // 校验:新密码和旧密码不能相同
    const samePwd = (rules, value, callback) => {
      if (value === this.pwdForm.old_pwd) {
        callback(new Error('新旧密码不能相同'))
      } else {
        callback() // 通过校验
      }
    }
    // 校验:新密码和确认密码必须相同
    const rePwd = (rules, value, callback) => {
      if (value !== this.pwdForm.new_pwd) {
        callback(new Error('两次输入的密码不相同'))
      } else {
        callback()
      }
    }
    return {
      // 表单的数据对象
      pwdForm: {
        old_pwd: '',
        new_pwd: '',
        re_pwd: ''
      },
      // 表单的验证规则对象
      pwdFormRules: {
        old_pwd: [{
          required: true,
          message: '请输入密码',
          trigger: 'blur'
        },
        {
          pattern: /^\S{6,15}$/,
          message: '密码长度必须是6-15位的非空字符串',
          trigger: 'blur'
        }
        ],
        new_pwd: [{
          required: true,
          message: '请输入新密码',
          trigger: 'blur'
        },
        {
          pattern: /^\S{6,15}$/,
          message: '密码长度必须是6-15位的非空字符串',
          trigger: 'blur'
        },
        {
          validator: samePwd,
          trigger: 'blur'
        }
        ],
        re_pwd: [{
          required: true,
          message: '请再次确认新密码',
          trigger: 'blur'
        },
        {
          pattern: /^\S{6,15}$/,
          message: '密码长度必须是6-15位的非空字符串',
          trigger: 'blur'
        },
        {
          validator: rePwd,
          trigger: 'blur'
        }
        ]
      }
    }
  },
  methods: {
    // 修改密码(先表单校验)
    updatePwdFn () {
      this.$refs.pwdFormRef.validate(async valid => {
        if (valid) {
          // 校验通过(调接口)
          const { data: res } = await updateUserPwdAPI(this.pwdForm)
          console.log(res)
          if (res.code !== 0) return this.$message.error('原密码不正确,请重新输入')
          this.$message.success('修改密码成功')
          // 清空表单,vuex用户数据,被动退出到登录页
          this.$refs.pwdFormRef.resetFields()
          this.$store.commit('updateToken', '')
          this.$store.commit('updateUserInfo', {})
          this.$router.push('/login')
        } else {
          return false
        }
      })
    },
    // 表单重置
    resetFn () {
      this.$refs.pwdFormRef.resetFields()
    }
  }
}
</script>

<style lang="less" scoped>
.el-form {
    width: 500px;
}
</style>
